Home / 55,312.48-76,331.28-30,162.40

Finding the Fourth Proportional to 55,312.48, 76,331.28 and 30,162.40

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Solution

The fourth proportional to 55,312.48, 76,331.28 and 30,162.40 is: 41,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,312.48 : 76,331.28 = 30,162.40 : x
  2. Step 2: Convert to fraction form
    55,312.48/76,331.28 = 30,162.40/x
  3. Step 3: Cross multiply
    55,312.48x = 76,331.28 × 30,162.40
  4. Step 4: Simplify right side
    55,312.48x = 2,302,334,599.87
  5. Step 5: Solve for x
    x = 2,302,334,599.87/55,312.48
  6. Step 6: Final answer
    x = 41,624.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.